• Hyperreality@kbin.social
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    11 months ago

    Roof/attic often uses rockwool or glasswool. Wall insulation is often something like XPS, PIR or PUR.

    Although it sounds counterintuitive, I can see straw doused in flame retardant being better than supposedly flame retardant polystyrene foam made from hydrocarbons. I mean, just look at what happened with Grenfell Tower.